Hibernate框架搭建

1.导入相关jar包

2.编写Hibernate的配置文件hibernate.cfg.xml

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-configuration PUBLIC"-//Hibernate/Hibernate Configuration DTD 3.0//EN""http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd"><hibernate-configuration><session-factory><!-- #hibernate.dialect org.hibernate.dialect.MySQLDialect#hibernate.dialect org.hibernate.dialect.MySQLInnoDBDialect#hibernate.dialect org.hibernate.dialect.MySQLMyISAMDialect#hibernate.connection.driver_class com.mysql.jdbc.Driver#hibernate.connection.url jdbc:mysql:///test#hibernate.connection.username gavin#hibernate.connection.password --> <!-- 数据库驱动 --><property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property> <!-- 数据库url --><property name="hibernate.connection.url">jdbc:mysql:///changejob</property> <!-- 数据库连接用户名 --><property name="hibernate.connection.username">root</property> <!-- 数据库连接密码 --><property name="hibernate.connection.password">root</property><!-- 数据库方言不同的数据库中,sql语法略有区别. 指定方言可以让hibernate框架在生成sql语句时.针对数据库的方言生成.sql99标准: DDL 定义语言  库表的增删改查  DCL 控制语言  事务 权限  DML 操纵语言  增删改查注意: MYSQL在选择方言时,请选择最短的方言. --><property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property><!-- #hibernate.show_sql true  #hibernate.format_sql true--><!-- 将hibernate生成的sql语句打印到控制台 --><property name="hibernate.show_sql">true</property><!-- 将hibernate生成的sql语句格式化(语法缩进) --><property name="hibernate.format_sql">true</property><!-- ## auto schema export  自动导出表结构. 自动建表#hibernate.hbm2ddl.auto create自动建表.每次框架运行都会创建新的表.以前表将会被覆盖,表数据会丢失.(开发环境中测试使用)#hibernate.hbm2ddl.auto create-drop 自动建表.每次框架运行结束都会将所有表删除.(开发环境中测试使用)#hibernate.hbm2ddl.auto update(推荐使用) 自动生成表.如果已经存在不会再生成.如果表有变动.自动更新表(不会删除任何数据).#hibernate.hbm2ddl.auto validate校验.不自动生成表.每次启动会校验数据库中表是否正确.校验失败. --><property name="hibernate.hbm2ddl.auto">update</property><!-- 引入orm元数据路径书写: 填写src下的路径 --><mapping resource="com/milan/hibernate/domain/Customer.hbm.xml" /></session-factory></hibernate-configuration>

3.编写实体类

package com.milan.hibernate.domain;public class Customer {/* * CREATE TABLE `cst_customer` (  `cust_id` BIGINT(32) NOT NULL AUTO_INCREMENT COMMENT '客户编号(主键)',  `cust_name` VARCHAR(32) NOT NULL COMMENT '客户名称(公司名称)',  `cust_source` VARCHAR(32) DEFAULT NULL COMMENT '客户信息来源',  `cust_industry` VARCHAR(32) DEFAULT NULL COMMENT '客户所属行业',  `cust_level` VARCHAR(32) DEFAULT NULL COMMENT '客户级别',  `cust_linkman` VARCHAR(64) DEFAULT NULL COMMENT '联系人',  `cust_phone` VARCHAR(64) DEFAULT NULL COMMENT '固定电话',  `cust_mobile` VARCHAR(16) DEFAULT NULL COMMENT '移动电话',  PRIMARY KEY (`cust_id`)) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8; */private Long cust_id;private String cust_name;private String cust_source;private String cust_industry;private String cust_level;private String cust_linkman;private String cust_phone;private String cust_mobile;public Long getCust_id() {return cust_id;}public void setCust_id(Long cust_id) {this.cust_id = cust_id;}public String getCust_name() {return cust_name;}public void setCust_name(String cust_name) {this.cust_name = cust_name;}public String getCust_source() {return cust_source;}public void setCust_source(String cust_source) {this.cust_source = cust_source;}public String getCust_industry() {return cust_industry;}public void setCust_industry(String cust_industry) {this.cust_industry = cust_industry;}public String getCust_level() {return cust_level;}public void setCust_level(String cust_level) {this.cust_level = cust_level;}public String getCust_linkman() {return cust_linkman;}public void setCust_linkman(String cust_linkman) {this.cust_linkman = cust_linkman;}public String getCust_phone() {return cust_phone;}public void setCust_phone(String cust_phone) {this.cust_phone = cust_phone;}public String getCust_mobile() {return cust_mobile;}public void setCust_mobile(String cust_mobile) {this.cust_mobile = cust_mobile;}@Overridepublic String toString() {return "Customer [cust_id=" + cust_id + ", cust_name=" + cust_name + "]";}}

4.编写实体类对应的xml文件

<?xml version="1.0" encoding="UTF-8"?><!DOCTYPE hibernate-mapping PUBLIC     "-//Hibernate/Hibernate Mapping DTD 3.0//EN"    "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">   <!-- 配置表与实体对象的关系 -->   <!-- package属性:填写一个包名.在元素内部凡是需要书写完整类名的属性,可以直接写简答类名了. --><hibernate-mapping package="com.milan.hibernate.domain" ><!-- class元素: 配置实体与表的对应关系的name: 完整类名table:数据库表名 --><class name="Customer" table="cst_customer" ><!-- id元素:配置主键映射的属性name: 填写主键对应属性名column(可选): 填写表中的主键列名.默认值:列名会默认使用属性名type(可选):填写列(属性)的类型.hibernate会自动检测实体的属性类型.每个类型有三种填法: java类型|hibernate类型|数据库类型not-null(可选):配置该属性(列)是否不能为空. 默认值:falselength(可选):配置数据库中列的长度. 默认值:使用数据库类型的最大长度 --><id name="cust_id"  ><!-- generator:主键生成策略 --><generator class="native"></generator></id><!-- property元素:除id之外的普通属性映射name: 填写属性名column(可选): 填写列名type(可选):填写列(属性)的类型.hibernate会自动检测实体的属性类型.每个类型有三种填法: java类型|hibernate类型|数据库类型not-null(可选):配置该属性(列)是否不能为空. 默认值:falselength(可选):配置数据库中列的长度. 默认值:使用数据库类型的最大长度 --><property name="cust_name" column="cust_name" ><!--  <column name="cust_name" sql-type="varchar" ></column> --></property><property name="cust_source" column="cust_source" ></property><property name="cust_industry" column="cust_industry" ></property><property name="cust_level" column="cust_level" ></property><property name="cust_linkman" column="cust_linkman" ></property><property name="cust_phone" column="cust_phone" ></property><property name="cust_mobile" column="cust_mobile" ></property></class></hibernate-mapping>

5.测试

package com.milan.hibernate.test;import org.hibernate.Session;import org.hibernate.SessionFactory;import org.hibernate.Transaction;import org.hibernate.cfg.Configuration;import org.junit.Test;import com.milan.hibernate.domain.Customer;public class Demo {@Testpublic void function1() {Configuration configuration = new Configuration().configure();SessionFactory sessionFactory = configuration.buildSessionFactory();Session session = sessionFactory.openSession();Transaction transaction = session.beginTransaction();Customer customer = new Customer();customer.setCust_name("helloworld");session.save(customer);transaction.commit();session.close();sessionFactory.close();}}

6.控制台输出如下：

五月 17, 2017 10:25:54 下午 org.hibernate.Version logVersion
INFO: HHH000412: Hibernate Core {5.0.7.Final}
五月 17, 2017 10:25:54 下午 org.hibernate.cfg.Environment <clinit>
INFO: HHH000206: hibernate.properties not found
五月 17, 2017 10:25:54 下午 org.hibernate.cfg.Environment buildBytecodeProvider
INFO: HHH000021: Bytecode provider name : javassist
五月 17, 2017 10:25:54 下午 org.hibernate.annotations.common.reflection.java.JavaReflectionManager <clinit>
INFO: HCANN000001: Hibernate Commons Annotations {5.0.1.Final}
五月 17, 2017 10:25:55 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl configure
WARN: HHH10001002: Using Hibernate built-in connection pool (not for production use!)
五月 17, 2017 10:25:55 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001005: using driver [com.mysql.jdbc.Driver] at URL [jdbc:mysql:///changejob]
五月 17, 2017 10:25:55 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001001: Connection properties: {user=root, password=****}
五月 17, 2017 10:25:55 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl buildCreator
INFO: HHH10001003: Autocommit mode: false
五月 17, 2017 10:25:55 下午 org.hibernate.engine.jdbc.connections.internal.PooledConnections <init>
INFO: HHH000115: Hibernate connection pool size: 20 (min=1)
五月 17, 2017 10:25:55 下午 org.hibernate.dialect.Dialect <init>
INFO: HHH000400: Using dialect: org.hibernate.dialect.MySQLDialect
五月 17, 2017 10:25:55 下午 org.hibernate.engine.jdbc.env.internal.LobCreatorBuilderImpl useContextualLobCreation
INFO: HHH000423: Disabling contextual LOB creation as JDBC driver reported JDBC version [3] less than 4
五月 17, 2017 10:25:56 下午 org.hibernate.tool.hbm2ddl.SchemaUpdate execute
INFO: HHH000228: Running hbm2ddl schema update
Hibernate: 
    insert 
    into
        cst_customer
        (cust_name, cust_source, cust_industry, cust_level, cust_linkman, cust_phone, cust_mobile) 
    values
        (?, ?, ?, ?, ?, ?, ?)
五月 17, 2017 10:25:56 下午 org.hibernate.engine.jdbc.connections.internal.DriverManagerConnectionProviderImpl stop
INFO: HHH10001008: Cleaning up connection pool [jdbc:mysql:///changejob]

查看数据库已生成数据